Collimator for dental x-ray instrument aiming rings



FIG. 1 is a perspective view of a collimator for dental x-ray instrument aiming rings, showing my new design;

FIG. 2 is an elevational view thereof, taken from the front side of FIG. 1;

FIG. 3 is a top plan view thereof taken from the top of FIG. 2;

FIG. 4 is a side elevational view thereof, taken from the right hand side of FIG. 2;

FIG. 5 is an elevational view thereof, taken from the back side of FIGS. 1 and 2;

FIG. 6 is a side elevational view taken from the left hand side of FIG. 2;

FIG. 7 is a perspective view of a second embodiment of a collimator for dental x-ray instrument aiming rings;

FIG. 8 is an elevational view thereof, taken from the front side of FIG. 7;

FIG. 9 is a top plan view thereof, taken from the top of FIG. 8;

FIG. 10 is a side elevational view thereof, taken from the right hand side of FIG. 8;

FIG. 11 is an elevational view thereof, taken from the back side of FIGS. 7 and 8. 

The ornamental design for collimator for dental x-ray instrument aiming rings, substantially as shown and described. 